63 lines
1.8 KiB
TypeScript
63 lines
1.8 KiB
TypeScript
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/* eslint-disable @typescript-eslint/no-var-requires */
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// eslint plugins can't use esm
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const { ESLintUtils } =
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require('@typescript-eslint/utils') as typeof import('@typescript-eslint/utils')
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const { SymbolFlags } = require('typescript') as typeof import('typescript')
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exports.rules = {
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'no-export-star': ESLintUtils.RuleCreator.withoutDocs({
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create(context) {
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return {
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ExportAllDeclaration(node) {
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if (node.exported !== null) {
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// we're exporting a specific name, so that's OK!
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return
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}
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// 1. Grab the TypeScript program from parser services
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const parserServices = ESLintUtils.getParserServices(context)
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const checker = parserServices.program.getTypeChecker()
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// 2. Find the backing TS node for the ES node, then the symbol for the imported file
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const originalNode = parserServices.esTreeNodeToTSNodeMap.get(node)
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const importedFileSymbol = checker.getSymbolAtLocation(originalNode.moduleSpecifier!)!
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// 3. Find all the imported names from the file
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const importedNames = checker.getExportsOfModule(importedFileSymbol).map((imported) => ({
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name: imported.getEscapedName(),
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isType: !(imported.flags & SymbolFlags.Value),
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}))
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// report the error and offer a fix (listing imported names)
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context.report({
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messageId: 'named',
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node,
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fix: (fixer) => {
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return fixer.replaceText(
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node,
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[
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'export {',
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...importedNames.map(
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(imported) => ` ${imported.isType ? 'type ' : ''}${imported.name},`
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),
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`} from ${JSON.stringify(node.source.value)};`,
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].join('\n')
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)
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},
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})
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},
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}
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},
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meta: {
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messages: {
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named: 'Use specific named exports instead of export *',
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},
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type: 'suggestion',
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schema: [],
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fixable: 'code',
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},
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defaultOptions: [],
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}),
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}
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